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F1846A — Technical Data Sheet

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— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UN, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-208-9411, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
F1846A
NSN: 5310-00-208-9411
FSC: 5310
CAGE: 54123 — COLSON CORP THE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
thread_class3B
thread_seriesUN
thread_directionRIGHT-HAND
width_across_flats2.370 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN
nominal_thread_size1.812 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch16
NSN5310-00-208-9411
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: F1846A · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD SERIES: UN
•
THREAD QUANTITY PER INCH: 16
•
BEARING SURFACE TYPE: CHAMFERED
•
NOMINAL THREAD SIZE: 1.812 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 3B
•
NUT HEIGHT: 0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 2.370 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUN
THREAD QUANTITY PER INCH16
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE1.812 INCHES IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3B
NUT HEIGHT0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
WIDTH ACROSS FLATS2.370 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN
NUT STYLEHEXAGON
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
D15-631RPC842Interchangeable
interchangeable cross-reference
interchangeable
D15-4940PC842Interchangeable
interchangeable cross-reference
interchangeable
D15-794BPC180Interchangeable
interchangeable cross-reference
interchangeable
3-8200Interchangeable
interchangeable cross-reference
interchangeable
J72078L6Interchangeable
interchangeable cross-reference
interchangeable
38-200ADXInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F1846A?
F1846A is a NUT,PLAIN,HEXAGON.
What parts can replace F1846A?
There are 9 known substitutes for F1846A: D15-631RPC842, D15-4940PC842, D15-794BPC180 and 6 more. Substitute compatibility should be verified for your specific system.
Is F1846A still available?
F1846A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: August 2026